JP3314144B2 - Dryer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dryer, for example, a dryer such as a drum type washer and a clothes dryer.

[0002]

2. Description of the Related Art There have been proposed a number of conventional dryers, for example, a drum type washing machine having a drying function, and most of the washing machines used in Europe are of this type. . In general, a washing machine of this type performs a washing operation by continuously rotating a rotating drum at a low speed. By using this rotating drum, dehydration and drying can be easily performed.

An embodiment of a conventional drum type washer will be described with reference to FIGS. 7 and 8. FIG. FIG. 7 is a schematic longitudinal sectional front view showing an embodiment of a conventional drum type washing machine, and FIG. 8 is a schematic vertical sectional side view showing an embodiment of a conventional drum type washing machine. The structure and operation of the conventional drum type washer will be described with reference to FIG.

[0004] This drum-type drying and washing machine includes a washing machine main body 1.
A water tank 4 suspended by an anti-vibration mechanism 5 on the inner upper end of the water tank 4 and a drum 2 arranged inside the water tank 4 so as to rotate around a horizontal axis. 8 in FIG.
An operation / display portion, on the back side of which a control device 22 is attached. The water tank 4 has a function of storing and discharging the washing liquid and the dehydrating liquid. Further, it has an exhaust port 8 for connecting an exhaust duct 7 for guiding hot air during drying to the dehumidifying heat exchanger 6.

The drum 2 is provided with water supply for washing, drainage for dehydration, a large number of small holes for passing hot air for drying, and a baffle 3 for lifting the laundry on the entire peripheral wall. Have been. A blower fan 9 for circulating air, a heater 10, a heater 10
Drying duct 1 that stores air and serves as an air circulation path
1 is installed.

A door 12 for taking in and out laundry is provided on the front of the main body, and the door 12 is structured to be sealed by a door packing 13 between the water tub 4 and the door. Reference numeral 14 denotes a drive motor for rotating the drum 2, and reference numeral 15 denotes a drainage pump for discharging washing liquid and the like outside the machine. Reference numeral 16 denotes a lint film provided in a piping path between the water tank 4 and the drainage pump 15.

In the washing step, washing water having an appropriate detergent concentration is poured into the water tank 4 and the lower part of the drum 2, and the drum is rotated by a motor. The clothes placed in the drum absorb the washing water, are lifted and fall, and are washed by tapping at the time of the fall. The rinsing process is also performed by rotating the drum 2. Dehydration is performed by rotating the drum 2 at a high speed and utilizing the centrifugal force.

During the drying step, the air is heated by the heater 10 and sent into the drum 2 by the blower fan 9 to remove the moisture of the laundry. From there, the moisture passes through the exhaust duct 7 from the exhaust port 8 of the water tank 4 and is condensed by heat exchange when the dehumidifying heat exchanger 6 located on the side of the water tank 4 comes into contact with cold water. The cooled and dehumidified dry air is sent to the blower fan 9 again, reheated by the heater 10, and recirculated to the drum 2. This operation is repeated to dry the laundry.

[0009]

In recent years, problems such as the spread of food poisoning have occurred, and the demand for cleanliness has been increasing.
There is also a demand for sterilization of clothing, and products that change the control of a part of the drying process and sell them are sold. However, this is a part of the drying operation for drying the washed clothes, and it takes a long time to complete the operation and the problem of the certainty of sterilization remains as a problem.

[0010] JP-B-5-5519 and JP-B-5-5519
In the apparatus disclosed in Japanese Patent No. -50959, a sterilization operation is incorporated in a part of the drying operation, and there is a problem that the operation time becomes long since the operation is started from a place where the dehydrated wet laundry is dried. Also, reliable control cannot be performed in accordance with the amount of laundry or the quality of the cloth, and when the amount of laundry is large, drying unevenness occurs, and there is still a problem in the reliability of the sterilization effect.

An object of the present invention is to solve the problem of the above-mentioned conventional technology, in which a dedicated course for sterilization is separated from a drying course, and a control different from a normal drying course is performed. Therefore, the present invention aims at realizing a dryer having a simple, short-time (energy saving) and reliable sterilizing effect.

[0012]

The dryer according to the present invention has solved the above-mentioned problems, and the first means according to the present invention is as follows.
During the operation of the dedicated course for sterilization, the function of the heat exchanger for dehumidification is stopped to shorten the heating time. The second means provides means for maintaining a predetermined sterilization temperature for a certain period of time, and stops the function of the dehumidifying heat exchanger as in the first means to save power and save water. ing.

[0013] The third means provides means for stopping the heating means when the heating step for sterilization is completed, and operating the dehumidifying heat exchanger to lower the temperature of the laundry in a short time. Things. Further, in the fourth means, the dehumidifying heat exchanger is water-cooled, and the function of the dehumidifying heat exchanger is simply and reliably achieved by simply opening and closing a water supply valve for supplying cooling water to the dehumidifying heat exchanger. Can be controlled.

Further, the fifth and sixth means are means for sensing the amount of laundry in the drum at the start of operation, and for setting a constant-temperature heating time and a cooling time for sterilization based on the sensing result. Provide. Furthermore, the seventh and eighth means provide means for detecting the temperature of the hot air exhausted from the drum in order to determine the temperature of the laundry in the drum, and the exhaust means which varies depending on the rotation direction of the drum. The purpose of the present invention is to provide a means for preventing the influence of temperature and performing highly accurate temperature detection. The ninth means is for notifying the user of the time at which the driving is completed, and displaying the remaining time of the highly accurate time-controlled step.

[0015] The tenth to twelfth means are control methods for ensuring a sterilizing effect, and prohibit reception of a pause key when the apparatus is temporarily stopped during operation. In the case where the control is performed so as to accept the suspension, a means such as starting from the first step at the restart stage is provided. The thirteenth and fourteenth means are provided with a dedicated key and a display for easy operation, and provide means for showing the selected course and driving condition to the user in an easy-to-understand manner. The fifteenth means provides means for alternately changing the rotation direction of the drum during the heating step to prevent the laundry from being entangled and to reduce the temperature distribution of the laundry. The sixteenth and seventeenth means allow the user to arbitrarily set the temperature at the time of constant temperature heating according to the type of clothing such as thick clothing of laundry and the quality and quantity of clothing such as cotton. When the temperature is not set, the temperature is automatically set to the minimum set temperature having a sterilizing effect to prevent damage to the cloth.

In the dryer according to the present invention, the function of the dehumidifying heat exchanger is stopped and heating is performed in the above configuration, so that the time required for temperature rise can be shortened, and in the case of a water-cooled type, cooling water can be saved. In addition, since the temperature equal to or higher than the sterilization killing temperature is maintained for a certain period of time, the sterilization effect is reliably obtained, and the same water saving effect as described above is obtained. Then, the temperature of the clothes, doors, and the like can be lowered to prevent burns when the user takes out the clothes after the operation is completed. Further, the operation / stop of the dehumidifying heat exchanger can be easily performed only by controlling the opening / closing of the cooling water supply valve.

Further, when the amount of clothing is large, control such as extending the constant temperature heating time can be performed, so that a reliable sterilizing effect can be obtained. Furthermore, when the amount of clothing is small, the constant-temperature heating time can be controlled to be short, so that energy can be saved without using unnecessary power.

When the amount of clothing is large, by controlling the cooling time to be extended, it is possible to prevent the user from touching the clothing and feeling uncomfortable that the clothing is too hot, and to prevent burns. Since the temperature of the warm air exhausted from the drum is detected, the accuracy of the determination of the temperature of the clothing is improved, and it is not necessary to heat the clothing at an unnecessarily high temperature, thereby saving power and preventing the clothing from being damaged.

Further, by limiting the detection of the exhaust temperature from the drum to one direction of the detection drum, the detection temperature is stabilized, and highly accurate control is possible. Further, by displaying the remaining time, the user can be notified of the end time. Furthermore, since the display is performed when the time until the end is determined, the display is accurate.

In addition, by not accepting a temporary stop during heating at a constant temperature, the time required for sterilization can be maintained, and a decrease in the sterilizing effect can be prevented. When a temporary stop is received during the operation, the control flow returns to the beginning of the control flow by restarting, so that the constant temperature heating temperature and heating time required for sterilization can be secured, and the sterilization effect is ensured. For example, even if the exhaust temperature of the drum is temporarily stopped during the heating at a constant temperature for a short time and restarted, and the exhaust temperature of the drum has reached a predetermined value, the heating at the constant temperature is performed again for a predetermined time from that time, so that the time required for sterilization is required. Is surely secured.

In addition, even if the power switch is turned off during operation and the display is stopped halfway even if the power switch is left unattended, the user can easily understand that the clothes cannot be sterilized easily. In addition to providing a dedicated course for sterilization, providing a dedicated key and display makes it easy to select the course and eliminates mistakes in selecting a dry course, thereby improving usability.

Furthermore, by using the progress display also as the display of the drying course, it is possible to prevent the display portion from becoming complicated, and by changing the blinking method of the display portion, it is possible to display the progress of the sterilization course. Can be easily determined. Also,
During the heating operation, the rotation direction of the drum is switched to the opposite direction at regular intervals to reduce the entanglement of the clothes in the drum, so that uneven heating is eliminated and the entire clothes can be reliably sterilized.

Since the user can determine the type and quality of the clothing and can set the constant-temperature heating temperature arbitrarily, there is an effect that it is possible to prevent damage to the clothing made of synthetic fiber which is weak to heat. Further, when the user does not set the constant temperature heating temperature, the temperature is automatically set to the minimum temperature required for sterilization, so that damage to clothing can be prevented.

[0024]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an embodiment of a dryer according to the present invention will be described in a case where the embodiment is applied to a drum type washing machine.

[0025] The drum type washing and washing machine according to the present invention comprises a rotating drum which freely rotates about a horizontal axis and accommodates laundry therein in a water tub arranged in an outer box; a heating means; Means, a heat exchanger for dehumidification, and a temperature detection means, washing, rinsing, dehydration, and a series of washing such as drying, a drum-type drying and washing machine performing a drying operation in one drum,
Until the temperature in the drum reaches a predetermined sterilization temperature, the function of the dehumidifying heat exchanger is stopped and a dedicated course for heating is provided.

In the above configuration, the heating means is controlled so as to maintain the temperature in a predetermined temperature range for a predetermined time after the temperature in the drum reaches a predetermined temperature. After a predetermined temperature range is maintained for a predetermined time, a step of stopping the heating means, operating the dehumidifying heat exchanger, and cooling the clothes in the drum is added.

Further, in the above structure, the dehumidifying heat exchanger is a water-cooled type, and switching between the heating step and the cooling step is controlled by opening and closing a cooling water supply valve. further,
In the above configuration, the capacity of the clothes in the drum is detected, and the time for maintaining the predetermined temperature is changed based on the result. Still further, in the above configuration, the capacity of the clothes in the drum is detected, and control is performed so as to set the time of the step of cooling the clothes in the drum based on the result.

Further, in the above configuration, the temperature in the drum is controlled by the temperature of the hot air exhausted from the drum. In the above configuration, the detection of the temperature of the hot air exhausted from the drum is performed only in the case of the determined drum rotation direction. And also in the above configuration,
The remaining time is displayed when the exhaust temperature from the drum reaches a predetermined temperature.

Further, in the above-mentioned configuration, control is performed such that a temporary stop is not accepted for a predetermined time after the temperature in the drum reaches a predetermined temperature. Furthermore, in the above configuration, when the operation is temporarily stopped and restarted, the operation is performed from the first step.

Further, in the above configuration, if the operation is interrupted during the operation, a notification indicating that the operation has been interrupted is issued. Further, in the above configuration, a dedicated key and a display are provided. In the above configuration, the display indicating the progress state is also used as the display of the drying course, and is controlled so as to be identified by the blinking method of the display.

In the above configuration, the drum is controlled so as to rotate alternately in the opposite direction during the heating step. Further, in the above configuration, there is provided a means for switching the temperature inside the drum controlled to a predetermined temperature and a display means for indicating a predetermined reference of the predetermined temperature.

Further, in the above-mentioned configuration, in the drum type drying and washing machine provided with a means for switching a temperature inside the drum controlled to a predetermined temperature and a display means for indicating a set predetermined temperature reference, When the means for switching the temperature is not operated, the temperature is controlled to be automatically set to the lowest set temperature.

Next, the structure of a drum type washing machine as an embodiment of the drying machine of the present invention will be described with reference to the drawings.
FIGS. 1 and 2 show a basic configuration of a drum-type drying and washing machine according to an embodiment of the present invention. The following mainly describes the main parts and the parts according to the present invention.

FIG. 1 is a schematic vertical sectional front view showing the internal structure of a drum type washing machine according to the present invention, and FIG. 2 is a schematic vertical sectional side view showing the internal structure of the drum type washing machine according to the present invention.

1 and 2, reference numeral 1 denotes a washing machine main body;
Reference numeral 2 denotes a drum which is a container for accommodating clothes (laundry, dried material) and the like, 3 denotes a baffle, 4 denotes a water tank, 5 denotes a vibration isolating mechanism (spring spring), 6 denotes a dehumidifying heat exchanger, and 7 denotes exhaust. A duct, 8 an exhaust port, 12 a door, 13 a door packing, 14 a drive motor, 15 a drain pump, 16 a lint filter, 17
Denotes a water supply valve for washing, and 18 denotes a drain hose.

9 is a blower for circulating air, 10
Is a heater for heating hot air, 11 is a duct for drying, 19 is a water supply valve for cooling water, 20 is a temperature sensor for detecting the temperature of exhaust air from the drum, and 21 is an operation / display unit (operation panel). , 22 are control devices.

Reference numeral 23 denotes a water supply hose, 24 denotes a power supply unit, 25 denotes a signal input unit, 26 denotes a control unit, 27 denotes an output unit,
Reference numeral 28 denotes a load unit, 29 denotes an outlet plug, 30 denotes a power switch, 31 denotes a sterilization course key, 32 denotes a sterilization course display unit, 33 denotes a segment display unit, 34 denotes a heating temperature selection key, and 35 denotes a progress display unit.

In the drum type washing machine, the rotating drum 2 and the water tub 4, each having a substantially cylindrical shape and having a short axial direction, are provided in the washing machine main body 1.
Are provided. The drum 2 is provided with a rotating shaft in the horizontal direction, and has a door 1 for opening a laundry which has one end in the direction along the rotating shaft (an end opposite to the rotating shaft).
2 are provided. Reference numeral 13 denotes a door packing, which is internally fitted as a sealing material made of an elastic material such as rubber.

Therefore, when the door 12 is closed, the sealing material is pinched between the peripheral edge of the door and the inner peripheral edge of the charging port, so that the watertightness of the washing machine body 1 and the water tub 4 is maintained. ing. In addition, the washing machine body 1
The water tank 4 is suspended from the upper part by an anti-vibration mechanism 5,
Thereby, the vibration of the water tank 4 is attenuated.

The drum 2 accommodates and rotates a washing machine, and a baffle 3 is formed in the drum 2 in the shape of a mountain protruding toward the central axis. The water tank 4 is provided so as to surround the drum 2 and stores washing water (including water containing detergent and rinsing water).

The washing water is supplied into the water tub 4 through the water pipe by opening and closing the tap water from the washing water supply valve 17 through the high-pressure hose 23 connected to the tap water. After entering, it is supplied into the water tank 4 through the water pipe). In addition, tap water is sent through the cooling water supply valve 19 so that the dehumidifying cooling water is sprayed into the dehumidifying heat exchanger 6 in a shower shape.

A drain duct for discharging washing water in the water tank 4 is provided at the bottom of the water tank 4, and the drain duct is provided with a filter 16 for removing contaminants such as lint and dust contained in the drained washing water. The filter 16 removes lint, dust, and the like. A drain pump 15 for draining the washing water in the tub 4 to the outside of the washing machine is connected to the filter case.

To dry the laundry, a drying unit including a blower 9, a heater 10, and a duct 11 and a dehumidifying heat exchanger 6 are provided in the washing machine main body 1. One end of the dehumidifying heat exchanger 6 is connected to an exhaust duct 7 communicating with the side surface of the water tank 4 or the end, and the other end is connected to a blower 9 of a drying unit above the water tank 4. Cooling water for dehumidification enters from the cooling water supply valve 19.

During the drying step, the air heated by the heater 10 is sent into the drum 2 by the blower 9, and the high-temperature and high-humidity air containing moisture evaporated from the laundry leaking from the drum 2 is discharged from the exhaust port 8 of the water tub 4. The air enters the dehumidifying heat exchanger 6 through the exhaust duct 7. The heat exchange when the jet of cold water supplied through the cooling water supply valve 19 comes into contact with hot air containing a large amount of moisture condenses moisture and removes it as water droplets.

The dehumidified warm air is sent again to the blower 9, reheated by the heater 10, and recirculated to the drum 2. A horizontal rotating shaft is fixedly provided at the end of the drum 2 opposite to the charging port through the center of the water tank 4 at the rotation center and a drum pulley is fixed to the rotating shaft. A drum driving motor 14 is provided at the lower end of the water tank 4, and a rotating shaft of the motor 14 and a drum pulley are connected by a belt. The components such as the water tank 4, the rotating shaft, the drum pulley, and the drum driving motor 14 are housed in the washing machine main body 1.

An operation panel 21 provided with a panel input section such as a run / stop switch and various operation switches, and a display section such as a display lamp is provided on an upper front portion of the main body 1 of the washing machine. . A control device 22 for electrically controlling the washing machine is provided inside the operation panel 21, and a signal line from the operation panel 21 is connected to the control device 22. The control device 22 includes a door switch that detects opening and closing of the door 12,
A water level switch for detecting the water level in the water tank 4 by water pressure, and
An output signal line of a tachometer for detecting rotation of the motor 14 is connected.

FIG. 3 is a circuit block diagram of the control device 22 of the drum type drying and washing machine. As shown in FIG. 3, the control device 22 mainly includes a power supply unit 24, a display unit 212, a panel input unit 211, It comprises a signal input unit 25 such as a door switch, a control unit 26, an output unit 27, and a load unit 28.

The power supply unit 24 receives a commercial power supply from the outlet plug 29 via the power switch 30 to transform the AC power supply, rectify and output a DC power supply for control, and oscillate and output a clock pulse. I do. Display section 212
Includes a buzzer in addition to the display lamp. Control unit 2
Numeral 6 mainly comprises a microcomputer for making judgments and commands regarding the operation of the washing machine, and has a calculation and storage unit.

The output unit 27 has a semiconductor device including a triac that outputs a drive signal in accordance with a command from the control unit. The load unit 28 is operated by the drive signal of the output unit, and is connected to the blower 9, the heater 10, and the cooling water supply valve 1.
9, a water supply valve 17 for washing, a drainage pump 15, a door lock mechanism, and an operation relay of the motor 14 for driving the drum.

4 is a key for selecting a sterilization-only course, 32 is a display which is lit when the key is pressed, 33 is the remaining time, And a segment portion indicating the selected heating temperature. Reference numeral 34 denotes a key for selecting a heating temperature.
Is a progress display.

Hereinafter, the operation of the present embodiment will be described. The basic operation from washing to drying is almost the same as that of a conventional drum-type washing machine, and the outline thereof is as follows.

First, the outline of the operation from the washing step to the dehydration step is as follows. In the washing step, laundry is put in the drum 2, detergent is put in the detergent case, the power is turned on, and the panel input section is turned on. When you press the start key on 211,
The washing operation is started. That is, after the door 12 is locked, the washing water supply valve 17 is opened to supply water to a predetermined water level, and the washing liquid in which the detergent is dissolved is poured from above and included in the laundry.

Next, washing is performed by rotating the drum 2 at a low speed. The laundry in the drum 2 is lifted to near the top of the drum 2 by centrifugal force due to the rotation of the drum 2 and the baffle 3, and then falls by its own weight (referred to as tumbling). By repeating this tumbling, the laundry is beat-washed with the impact force at the time of falling. Rinsing is performed by rotating the rotating drum 2 at a low speed.
When the rinsing is completed, the rotation of the drum 2 is stopped, the drain pump 15 is turned on, and the washing liquid is discharged outside the machine.

After the washing and rinsing steps are completed and the drainage is completed,
The process proceeds to the dehydration step, and performs the imbalance correction step of the low-speed reversal operation for the purpose of correcting the unbalance of the clothes. After the unbalance correction process is completed, a low-speed rotation unbalance detection process is performed for the purpose of detecting the unbalance of the clothes.
Dehydration is performed in such a manner that the laundry is pressed against the inner surface of the peripheral wall of the drum 2 using the centrifugal force generated by the rotation of the drum at that time.

Drying is performed by sending the air heated by the drying heater 10 into the drum 2 by the blower 9. The high-temperature and high-humidity air containing moisture evaporated from the wet laundry in the drum 2 enters the dehumidifying heat exchanger 6 through the exhaust port 8 of the water tub 4 and the exhaust duct 7. Moisture is condensed by heat exchange when the jet of cold water supplied through the cooling water supply valve 19 comes into contact with moisture. The cooled dry air is sent again to the blower 9, reheated by the heater 10, and recirculated to the drum 2.

Next, the sterilization operation which is the gist of the present invention will be described with reference to FIG.
This will be described together with the flowchart shown in FIG. When the power switch is pressed, a display such as a course that can be selected is turned on. Next, when a course dedicated to sterilization of the present invention is selected and the temperature of the constant temperature heating is set, the dedicated display 32 of the course is turned on.

Then, when the start key is pressed, the progress display 35 changes from lighting to blinking, capacity sensing is performed, and the result is stored in the memory. Next, the blower 9 starts operating at the same time as the drum 2 starts rotating, and the heater 10 is turned on with a slight delay. Heating is continued until the exhaust gas temperature from the drum 2 reaches a predetermined temperature T determined by capacity sensing or initial temperature setting.

When the exhaust temperature of the drum 2 reaches a predetermined temperature T, the remaining time is displayed on the segment display section 33, and the heater 10 is turned on / off to perform control so as to enter a predetermined temperature range. This state is maintained until the time after the temperature reaches the predetermined temperature T exceeds the predetermined time t determined by the capacitance sensing.

When the predetermined time t has elapsed, the input of the heater 10 is shut off, the cooling water supply valve 19 is opened, and the drain pump 15 is operated to start the cooling step. After a lapse of a predetermined time determined by the capacity sensing, the rotation of the cooling water supply valve 19, the blower 9, the drain pump 15, and the drum 2 is stopped, the end is notified, and the operation is ended.

FIG. 6 shows a change in the exhaust temperature of the drum 2 and a control state of the load of the heater 10 and the like when the control is performed based on the control flow shown in FIG. In this case, drum 2
Exhaust gas temperature T _1, T ₂ are each 74 ° C. in a 72 ° C., the temperature of the clothes in the drum 2 is held at about 80-85 ° C.. In addition, the operating time of the heating process is such that the weight of the clothing is 1 to 3.
It takes about 15 minutes at 1.2 kg, which is about 1/2 of the time required to raise the temperature of clothes of the same weight in the drying step.

[0061]

The dryer of the present invention has the above configuration,
A special course that only heats and sterilizes clothes is not required, so unnecessary cooling water and electric power of heaters are not required, saving water and saving power, and the function of a dehumidifying heat exchanger during the heating period. , The time required for raising the temperature is shortened, and the required sterilizing effect can be obtained in a short time.

By using a capacity sensing function which is not provided in a normal clothes dryer, fine and precise control can be performed, and only parts necessary for drying, such as a heater and a blower, are shared. Therefore, a dry washing machine having a high sterilizing function can be provided at low cost. Further, it is possible to provide a dry washing machine having a sterilization function excellent in usability such as providing a dedicated key and a display.

[Brief description of the drawings]

FIG. 1 is a schematic longitudinal sectional front view showing the internal structure of a drum type washing machine according to the present invention.

FIG. 2 is a schematic vertical sectional side view showing an internal structure of the drum type washing machine according to the present invention.

FIG. 3 is an embodiment of a block diagram of a control device of the drum-type drying and washing machine according to the present invention.

FIG. 4 is an embodiment of a display / operation unit of the drum type washing machine according to the present invention.

FIG. 5 is an embodiment of a control flowchart of the drum-type drying and washing machine according to the present invention.

FIG. 6 is a timing chart showing an operation state when an operation based on the control flowchart of FIG. 5 is performed.

FIG. 7 is a schematic vertical sectional front view showing the internal structure of a conventional drum-type drying and washing machine.

FIG. 8 is a schematic vertical sectional side view showing the internal structure of a conventional drum-type drying and washing machine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Washing machine main body 2 Drum 3 Baffle 4 Water tank 5 Anti-vibration mechanism 6 Heat exchanger for dehumidification 7 Exhaust duct 8 Exhaust port 9 Blower 10 Heater 11 Blast duct 12 Door 13 Door packing 14 Drive motor 15 Drain pump 16 Lint filter 17 Washing Water supply valve 18 Drain hose 19 Cooling water supply valve 20 Temperature sensor 21 Operation panel 22 Control device 23 Water supply hose 24 Power supply unit 25 Signal input unit 26 Control unit 27 Output unit 28 Load unit 29 Outlet plug 30 Power switch 31 Sterilization course key 32 Sterilization course display section 33 Segment display section 34 Heating temperature selection key 35 Progress display section

Claims (10)

(57) [Claims] 1. A drum for storing an object to be dried such as clothes ,
A drive motor for rotating the drum, heating means,
Sending air heated by the heating means into the drum
Wind means and temperature detecting means for detecting the temperature in the drum
Controlling the heating means according to the value detected by the temperature detecting means.
And a control unit for controlling the exhaust of the air in the drum.
One of the dehumidifying heat exchangers is connected to the exhaust port via an exhaust duct.
And the other side of the heat exchanger for dehumidification
The suction side of the means is connected to the inside of this heat exchanger for dehumidification.
Is to supply high-temperature, high-humidity air from the drum by supplying cooling water
Air and the cooling water to cool the high-temperature, high-humidity air.
In a dryer designed to perform dehumidification, the function of the dehumidification heat exchanger is stopped for a certain period of time after the temperature in the drum reaches a predetermined sterilization temperature, and a dedicated course for heating is provided. A dryer characterized in that: After holding wherein the said predetermined sterilization temperature range predetermined time, stops the heating means to operate the heat exchanger for dehumidification, the step of cooling the material to be dried such as clothes in the drum The dryer according to claim 1 , wherein the dryer is added. Wherein said detecting the clothing of the capacity of the drum, according to claim 1 or claim 2 any one of, wherein the changing the time for maintaining the predetermined sterilization temperature based on the result Dryers. 4. A detects the clothing capacity in the drum, drying of claim 2, wherein the controller controls so as to set the time of cooling the clothes in the drum based on the result Machine. 5. Any one of the drier of claims 1 to 3, wherein the controller controls a temperature temperature from the drum of the hot air being exhausted in the drum. 6. The dryer of claim 4, wherein the performing detection of hot air temperature exhausted the drum or, et al., If the rotational direction of the determined drum only. Any of 7. temperature of the drum reaches a predetermined sterilization temperature, the predetermined period of time of claims 1 to 6, wherein the controller controls not to accept a pause Or one dryer. 8. paused midway above operation, when it is restarted, any one of the dryer of claim 1 to claim 6, wherein the driving from the first step. If 9. operation halfway the operation is interrupted, claims 1 to 7 or one of the drier, wherein the performing the notification indicating that the operation was interrupted. 10. Any one of the dryer of the heating step in the claims 1 to 9, wherein controlling to rotate in the opposite direction to the drum alternately.